Unity power factor power supply for use with variable frequency

Details Unity power factor power supply for use with variable frequency Unity power factor power supply for use with variable frequency

1997-12-19

1999-09-28

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 89, 323222, 323288, 323283, G05F 110, G05F 140, H02M 112, H02M 324

Patent

active

059598522

ABSTRACT:
A unity power factor power supply includes a boost converter. The boost converter draws current in phase with the input voltage by operating as a current regulator having a current reference control signal which tracks the line voltage waveform. A sample and hold technique is utilized to accommodate single cycle step input compensation and to reduce harmonic distortion over a wide input frequency range.

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patent: 5572416 (1996-11-01), Jacobs et al.
patent: 5602465 (1997-02-01), Clemente

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